to Muʿāwiyah for 90,000; he then ordered a crier in al-Madīnah to announce, “Whoever wishes to borrow, let him come.”
So he lent out 40,000, gave the rest away as outright gifts, and had a note written for every man to whom he had extended a loan.

Later he fell ill and the number of visitors dwindled, so he asked his wife Quraybah, the sister of al-Ṣiddīq, “Why are my callers so few?”
She replied, “Because of the debts.”
He therefore sent each borrower his own document back and said, “O Allah, grant me wealth and [good] deeds, for deeds are of no use without wealth.” (1)

ʿAmr ibn Dīnār reported on the authority of Abū Ṣāliḥ that Saʿd divided his estate among his children, then set out for Syria, where he died; afterwards another child was born to him. Abū Bakr and ʿUmar came to his son Qays and said, “We think you should restore a share to this one.”
He replied, “I will not alter anything Saʿd arranged, but my own portion is his.” (2)
This same account is also transmitted by Ibn Sīrīn and by ʿAṭāʾ.

Misʿar narrated from Maʿbad ibn Khālid, who said, “Qays ibn Saʿd was always like this—holding his index finger aloft, meaning that he was making supplication.” (3)

Qays’s generosity became a by-word, and so did his astuteness. Al-Jarrāḥ ibn Malīḥ al-Bahrānī narrated from Abū Rāfiʿ, from Qays ibn Saʿd, who said, “Had I not heard the Messenger of Allah ﷺ say, ‘Deceit and trickery are in the Fire’ (4) …”